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From: reichelt@igpm.rwth-aachen.de To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, vitalyb@mailru.com Subject: Re: optimization/8985: ICE in extract_insn, at recog.c:2148 with -fssa-ccp option Date: Wed, 18 Dec 2002 05:10:00 -0000 [thread overview] Message-ID: <20021218131047.11393.qmail@sources.redhat.com> (raw) Old Synopsis: "Internal compiler error in extract_insn, at recog.c:2148" with -fssa-ccp option New Synopsis: ICE in extract_insn, at recog.c:2148 with -fssa-ccp option State-Changed-From-To: open->analyzed State-Changed-By: reichelt State-Changed-When: Wed Dec 18 05:10:46 2002 State-Changed-Why: Confirmed. The bug is present since gcc 3.1 when the option -fssa-ccp was introduced. It affects the 3.2 branch and gcc 3.3 as of 20021216. A shorter testcase is the following: -------------------------snip here----------------------------- int foo () { int i=0; char *p=""; if (p) i|=1; return i && p; } -------------------------snip here----------------------------- Compiling this with gcc 3.2.1 (gcc -O -fssa -fssa-ccp) I get: PR8985.cc: In function `int foo()': PR8985.cc:9: unrecognizable insn: (insn 27 55 28 (parallel[ (set (reg:SI 64) (const_int 1 [0x1])) (clobber (reg:CC 17 flags)) ] ) -1 (nil) (expr_list:REG_UNUSED (reg:CC 17 flags) (insn_list:REG_WAS_0 11 (expr_list:REG_EQUAL (const_int 1 [0x1]) (nil))))) PR8985.cc:9: Internal compiler error in extract_insn, at recog.c:2148 Please submit a full bug report, [etc.] http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8985
next reply other threads:[~2002-12-18 13:10 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-12-18 5:10 reichelt [this message] 2003-01-15 12:36 Volker Reichelt 2003-05-10 5:06 Dara Hazeghi
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